fix: apply code review suggestions from #15

Co-authored-by: Jan Romann <[email protected]>

Author: pulsastrix

libcoap-sys/src/wrapper.h

@@ -8,4 +8,4 @@
  */
 
 #include <coap3/coap.h>
-#include <coap_config.h>
+#include <coap_config.h>

libcoap/src/event.rs

@@ -153,7 +153,6 @@ pub trait CoapEventHandler: Debug {
     fn handle_ws_packet_size(&mut self, session: &mut CoapSession) {}
 
     /// Handle a WebSocket layer up event.
-
     #[allow(unused_variables)]
     fn handle_ws_connected(&mut self, session: &mut CoapSession) {}
 
@@ -162,7 +161,6 @@ pub trait CoapEventHandler: Debug {
     #[allow(unused_variables)]
     fn handle_ws_closed(&mut self, session: &mut CoapSession) {}
 
-
     /// Handle a failure to perform a keepalive (no response to keepalive packet)
     #[allow(unused_variables)]
     fn handle_keepalive_failure(&mut self, session: &mut CoapSession) {}

libcoap/src/message/response.rs

@@ -151,7 +151,7 @@ impl CoapResponse {
     ///
     /// This option can be used by servers to ensure that a request is recent.
     ///
-    /// The client should include the provided request in its response.
+    /// The client should include the provided option value in its next request.
     ///
     /// As handling echo options on the client side is done automatically by libcoap, this option
     /// is not accessible in [CoapRequest], see `man coap_send` for more information.